The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 29, 2025

Filed:

Dec. 25, 2019
Applicants:

Dow Global Technologies Llc, Midland, MI (US);

Rohm and Haas Company, Collegeville, PA (US);

Inventors:

Han Liu, Shanghai, CN;

Yuehan Hu, Shanghai, CN;

Zhi Juan Gong, Shanghai, CN;

Ling Li, Louyang, CN;

Xiangting Dong, Shanghai, CN;

Hengtong Wei, Shanghai, CN;

Assignees:

DOW GLOBAL TECHNOLOGIES LLC, Midland, MI (US);

ROHM AND HAAS COMPANY, Collegeville, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 220/18 (2006.01); C08F 2/22 (2006.01); C08F 226/10 (2006.01); C08F 265/04 (2006.01);
U.S. Cl.
CPC ...
C08F 2/22 (2013.01); C08F 220/18 (2013.01); C08F 226/10 (2013.01); C08F 265/04 (2013.01);
Abstract

A multistage emulsion polymer comprising a first polymer and a second polymer comprising structural units of a nitrogen-containing heterocyclic monomer at specific weight ratios of the first polymer to the second polymer and a Tg difference between the first and second polymers; the multistage emulsion polymer suitable for use in coating applications to provide coating films with improved dirt pick-up resistance without compromising film formation properties.


Find Patent Forward Citations

Liu, Han. (2025). Multistage emulsion polymer and process of preparing the same (U.S. Patent No. 12371515). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12371515

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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